Home / 7,939.69-11,900.45-3,773.79

Finding the Fourth Proportional to 7,939.69, 11,900.45 and 3,773.79

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Solution

The fourth proportional to 7,939.69, 11,900.45 and 3,773.79 is: 5,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.69 : 11,900.45 = 3,773.79 : x
  2. Step 2: Convert to fraction form
    7,939.69/11,900.45 = 3,773.79/x
  3. Step 3: Cross multiply
    7,939.69x = 11,900.45 × 3,773.79
  4. Step 4: Simplify right side
    7,939.69x = 44,909,808.64
  5. Step 5: Solve for x
    x = 44,909,808.64/7,939.69
  6. Step 6: Final answer
    x = 5,656.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.